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Longman Dictionary of Contemporary English
oil/petroleum/sugar refinery
petroleum jelly
refined sugar/oil/petroleum
▪ The leaded petrol market is shrinking so fast that some major petroleum companies have discontinued refining leaded petrol.
▪ Flammable petroleum gas escaping through rock vents created the sacred pillars of fire worshipped by Zoroastrians.
▪ There, they would reduce the need for oil products such as kerosene and petroleum gas.
▪ The offshore petroleum industry training organisation has now established a data base to provide details of the courses attended.
▪ Take any prescribed drugs with your breakfast and apply the plasters, petroleum jelly etc to help you on your way.
▪ Have you rubbed on petroleum jelly or applied any necessary plasters?
▪ A little oil or petroleum jelly on the thread will help.
▪ On Sept. 15 the government raised petroleum prices by 18 percent in an attempt to reduce the fiscal deficit.
▪ As more oilfields were discovered, petroleum products increased by more than 16 times in the 1920s.
▪ Some is based on observations from real spills; some is projected theoretically from the viscosities and boiling points of petroleum products.
▪ There were also transport and pipeline problems and overall output of petroleum products was down on 1988.
▪ Heherson Alvarez said disagreements over the taxation of imported petroleum products has stalled the passage of an oil industry deregulation bill.
▪ An industry that deals with petroleum products tends, by its nature, to be inherently dangerous.
▪ Local oil companies want a 10 percent tariff on refined petroleum products and 3 percent duty for imported crude oil.
▪ Officials said that the move was temporary and that the companies would be paid for supplying petroleum products.
▪ Mr Lamont plausibly presented his reforms of petroleum revenue tax as taking sensible cognisance of a much-changed industry.
petroleum-based plastic
▪ A petroleum engineer with 3 5 years of international experience.
▪ For distillation, refining or other processing of petroleum or petroleum products 3.
▪ Huge industrial sectors built up in the 70s and 80s-including petroleum, telecommunications and automobiles-will be especially vulnerable.
▪ Local oil companies want a 10 percent tariff on refined petroleum products and 3 percent duty for imported crude oil.
▪ Plastic-producing petroleum is a finite resource.
▪ Repsol is a bigger refiner than producer, and buys up to 75 percent of the petroleum it uses.
▪ Suprex has introduced the Aromatic Analyser which determines the aromatic content of petroleum fuels.
▪ The gap between low cost and high value makes petroleum a highly political resource.
The Collaborative International Dictionary

Petroleum \Pe*tro"le*um\, n. [NL., fr. L. petra a rock + oleum oil: cf. F. p['e]trole. Cf. Petrify, and Oil.] Rock oil, mineral oil, or natural oil, a dark brown or greenish inflammable liquid, which, at certain points, exists in the upper strata of the earth, from whence it is pumped, or forced by pressure of the gas attending it. It consists of a complex mixture of various hydrocarbons, largely of the methane series, but may vary much in appearance, composition, and properties. It is refined by distillation, and the products include kerosene, benzine, gasoline, paraffin, etc.

Petroleum spirit, a volatile liquid obtained in the distillation of crude petroleum at a temperature of 170[deg] Fahr., or below. The term is rather loosely applied to a considerable range of products, including benzine and ligroin. The terms petroleum ether, and naphtha, are sometimes applied to the still more volatile products, including rhigolene, gasoline, cymogene, etc.

Douglas Harper's Etymology Dictionary

early 15c. "petroleum, rock oil" (mid-14c. in Anglo-French), from Medieval Latin petroleum, from Latin petra "rock" (see petrous) + oleum "oil" (see oil (n.)).


n. A flammable liquid ranging in color from clear to very dark brown and black, consisting mainly of hydrocarbons, occurring naturally in deposits under the Earth's surface.


n. a dark oil consisting mainly of hydrocarbons [syn: crude oil, crude, rock oil, fossil oil]

Petroleum -- U.S. County in Montana
Population (2000): 493
Housing Units (2000): 292
Land area (2000): 1653.903684 sq. miles (4283.590695 sq. km)
Water area (2000): 20.110830 sq. miles (52.086808 sq. km)
Total area (2000): 1674.014514 sq. miles (4335.677503 sq. km)
Located within: Montana (MT), FIPS 30
Location: 47.000478 N, 108.290051 W
Petroleum, MT
Petroleum County
Petroleum County, MT

Petroleum (from : "rock" + oleum: "oil".) is a naturally occurring, yellow-to-black liquid found in geological formations beneath the Earth's surface, which is commonly refined into various types of fuels. Components of petroleum are separated using a technique called fractional distillation.

It consists of hydrocarbons of various molecular weights and other organic compounds. The name petroleum covers both naturally occurring unprocessed crude oil and petroleum products that are made up of refined crude oil. A fossil fuel, petroleum is formed when large quantities of dead organisms, usually zooplankton and algae, are buried underneath sedimentary rock and subjected to both intense heat and pressure.

Petroleum has mostly been recovered by oil drilling (natural petroleum springs are rare). Drilling is carried out after studies of structural geology (at the reservoir scale), sedimentary basin analysis, and reservoir characterization (mainly in terms of the porosity and permeability of geologic reservoir structures) have been completed. It is refined and separated, most easily by distillation, into a large number of consumer products, from gasoline (petrol) and kerosene to asphalt and chemical reagents used to make plastics and pharmaceuticals. Petroleum is used in manufacturing a wide variety of materials, and it is estimated that the world consumes about 90 million barrels each day.

Concern over the depletion of the earth's finite reserves of oil, and the effect this would have on a society dependent on it, is a concept known as peak oil. The use of fossil fuels, such as petroleum, has a negative impact on Earth's biosphere, damaging ecosystems through events such as oil spills and releasing a range of pollutants into the air including ground-level ozone and sulfur dioxide from sulfur impurities in fossil fuels. The burning of fossil fuels plays the major role in the current episode of global warming.

Petroleum (disambiguation)

Petroleum is a naturally occurring, flammable hydrocarbon.

Petroleum may also refer to:

  • Petroleum coke
  • Petroleum engineering
  • Petroleum ether
  • Petroleum extraction
  • Petroleum licensing
  • Petroleum geochemistry
  • Petroleum geology
  • The petroleum industry
  • The Petroleum Institute
  • Petroleum jelly
  • Petroleum politics
  • A Petroleum product
  • A petroleum reservoir
  • Liquefied petroleum gas
  • Strategic Petroleum Reserve (disambiguation)
Place names
  • Petroleum, Indiana
  • Petroleum, Kentucky
  • Petroleum County, Montana
  • Petroleum, West Virginia
  • "Petroleum", a song by Swedish band Kent from their 2012 album Jag är inte rädd för mörkret

Usage examples of "petroleum".

And just as the bow that spans the mantling cloud reminds us of all beautiful things that glow around its antitype that spans the emerald throne on high, so, as we gaze upon the prismatic tints that are reflected from the oily surface, we dream of all that is beautiful in color and gorgeous in tinted radiance, as being hidden amid the elements of petroleum.

Hydrocarbon Oils -- Scotch Shale Oils -- Petroleum -- Vegetable and Animal Oils -- Testing and Adulteration of Oils -- Lubricating Greases -- Lubrication -- Appendices -- Index.

For the first, the technical directorate of an entire Atlantic Sub-Sea Petroleum Corporation district, and all wells, fields, pipelines, stills, storage fields, transport, fabrication and maintenance appertaining thereto.

The second principle which underlies all the most recent methods for extracting the grease from the wool, consists in treating the fibre with some solvent like benzol, carbon bisulphide, petroleum spirit, carbon tetrachloride, etc.

Specific Gravity Tables -- Percentage Tare Tables -- Petroleum Tables -- Paraffine and Benzoline Calculations -- Customary Drafts -- Tables for Calculating Allowance for Dirt, Water, etc.

Ia Chevaux was back on television, again clutching a half-gallon of Old White Stagg, but this time in the company of the governor and the president of Amalgamated World-Wide Petroleum.

Funded by multinational polluters such as Phillips Petroleum, Exxon, Texaco, Amoco, Shell, Ford Motor Company, and Chevron, the MSLF filed suits intended to block efforts by environmentalists, unions, minorities, and handicapped Americans that might cut into corporate profit taking.

Linda Fisher, a former lobbyist for Monsanto, and Superfund was run by Marianne Horinko, a lobbyist and consultant to polluters, including the Koch Petroleum Group and Koch Industries.

Texas ratite industry enjoyed a boom in the late 1980s akin to the booms enjoyed by the Texas petroleum industry in times past.

The sky was lit at uneven intervals by waste-gas fires, and the air was foul with the stink of petroleum distillates: aviation kerosene, gasoline, diesel fuel, benzine, nitrogen tetroxide for intercontinental missiles, lubricating oils of various grades, and complex petrochemicals identified only by their alphanumeric prefixes.

Thus we will patent the Cadbury clown fish, the British Petroleum stag coral, the Marks and Spencer moray eel, the Royal Bank of Scotland angelfish, and gliding silently overhead, the British Airways manta ray.

Just in this county are found gold, silver, copper, asphaltum, bituminous rock, gypsum, quicksilver, natural gas, and petroleum.

The oil producing nations were still antsy about the future as more depolymerization plants turning waste into oil came online in the United States, making the prospects for near self-sufficiency in petroleum more realistic.

Fire coughed uncertainly from the mouths of the flamethrowers, spattering the hall along the floors, walls, and ceiling, where it clung in globs of what had to be a mix of gasoline or some other accelerant, and petroleum jellyhomemade napalm.

Even before this demand for goods could be filled, a new wave of investment activity in Canada was triggered by the discovery of the petroleum deposits at Leduc, Alberta, on February 13, 1947.